diff --git a/src/main/java/de/epiceric/shopchest/ShopChest.java b/src/main/java/de/epiceric/shopchest/ShopChest.java
index 1a09ef7..4710358 100644
--- a/src/main/java/de/epiceric/shopchest/ShopChest.java
+++ b/src/main/java/de/epiceric/shopchest/ShopChest.java
@@ -95,6 +95,7 @@ public class ShopChest extends JavaPlugin {
 
                 fw = new FileWriter(debugLogFile, true);
             } catch (IOException e) {
+                getLogger().info("Failed to instantiate FileWriter");
                 e.printStackTrace();
             }
         }
@@ -272,9 +273,9 @@ public class ShopChest extends JavaPlugin {
             debug("Trying to register command \"/" + config.main_command_name + "\"");
             ShopCommand.registerCommand(new ShopCommand(this, config.main_command_name, "Manage Shops.", "", new ArrayList<String>()), this);
         } catch (Exception e) {
+            getLogger().info("Failed to register command");
             debug("Failed to register command");
             debug(e);
-            e.printStackTrace();
         }
 
         initializeShops();
@@ -312,6 +313,7 @@ public class ShopChest extends JavaPlugin {
             try {
                 fw.close();
             } catch (IOException e) {
+                getLogger().severe("Failed to close FileWriter");
                 e.printStackTrace();
             }
         }
diff --git a/src/main/java/de/epiceric/shopchest/config/Config.java b/src/main/java/de/epiceric/shopchest/config/Config.java
index 9b043a2..3012676 100644
--- a/src/main/java/de/epiceric/shopchest/config/Config.java
+++ b/src/main/java/de/epiceric/shopchest/config/Config.java
@@ -342,7 +342,7 @@ public class Config {
 
                     langConfig.loadFromString(sb.toString());
                 } catch (IOException | InvalidConfigurationException ex) {
-                    ex.printStackTrace();
+                    plugin.debug(ex);
                     plugin.getLogger().warning("Using default language values");
                 }
             } else {
@@ -350,7 +350,7 @@ public class Config {
                     langConfig.load(langDefaultFile);
                     plugin.getLogger().info("Using locale \"en_US\"");
                 } catch (IOException | InvalidConfigurationException e) {
-                    e.printStackTrace();
+                    plugin.debug(e);
                     plugin.getLogger().warning("Using default language values");
                 }
             }
@@ -359,7 +359,7 @@ public class Config {
                 plugin.getLogger().info("Using locale \"" + langConfigFile.getName().substring(0, langConfigFile.getName().length() - 5) + "\"");
                 langConfig.load(langConfigFile);
             } catch (IOException | InvalidConfigurationException ex) {
-                ex.printStackTrace();
+                plugin.debug(ex);
                 plugin.getLogger().warning("Using default language values");
             }
         }
diff --git a/src/main/java/de/epiceric/shopchest/nms/Hologram.java b/src/main/java/de/epiceric/shopchest/nms/Hologram.java
index b3eec44..131ea33 100644
--- a/src/main/java/de/epiceric/shopchest/nms/Hologram.java
+++ b/src/main/java/de/epiceric/shopchest/nms/Hologram.java
@@ -73,9 +73,9 @@ public class Hologram {
                 this.location.subtract(0, 0.25, 0);
                 count++;
             } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException e) {
+                plugin.getLogger().severe("Could not create Hologram with reflection");
                 plugin.debug("Could not create Hologram with reflection");
                 plugin.debug(e);
-                e.printStackTrace();
             }
 
 
@@ -107,9 +107,9 @@ public class Hologram {
 
                 Utils.sendPacket(plugin, packet, p);
             } catch (NoSuchMethodException | InstantiationException | InvocationTargetException | IllegalAccessException e) {
+                plugin.getLogger().severe("Could not show Hologram to player with reflection");
                 plugin.debug("Could not show Hologram to player with reflection");
                 plugin.debug(e);
-                e.printStackTrace();
             }
         }
         visible.add(p);
@@ -127,9 +127,9 @@ public class Hologram {
 
                 Utils.sendPacket(plugin, packet, p);
             } catch (NoSuchMethodException | InstantiationException | InvocationTargetException | IllegalAccessException e) {
+                plugin.getLogger().severe("Could not hide Hologram from player with reflection");
                 plugin.debug("Could not hide Hologram from player with reflection");
                 plugin.debug(e);
-                e.printStackTrace();
             }
         }
         visible.remove(p);
@@ -159,9 +159,9 @@ public class Hologram {
             try {
                 o.getClass().getMethod("die").invoke(o);
             } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+                plugin.getLogger().severe("Could not remove Hologram with reflection");
                 plugin.debug("Could not remove Hologram with reflection");
                 plugin.debug(e);
-                e.printStackTrace();
             }
         }
         exists = false;
diff --git a/src/main/java/de/epiceric/shopchest/nms/JsonBuilder.java b/src/main/java/de/epiceric/shopchest/nms/JsonBuilder.java
index cb8a5c2..872fbb7 100644
--- a/src/main/java/de/epiceric/shopchest/nms/JsonBuilder.java
+++ b/src/main/java/de/epiceric/shopchest/nms/JsonBuilder.java
@@ -117,9 +117,9 @@ public class JsonBuilder {
             Utils.sendPacket(plugin, packetPlayOutChat, p);
         } catch (InstantiationException | InvocationTargetException |
                 IllegalAccessException | NoSuchMethodException e) {
-            plugin.debug("Failed to send packet with reflection");
+            plugin.getLogger().severe("Failed to send JSON with reflection");
+            plugin.debug("Failed to send JSON with reflection");
             plugin.debug(e);
-            e.printStackTrace();
         }
     }
 
diff --git a/src/main/java/de/epiceric/shopchest/nms/SpawnEggMeta.java b/src/main/java/de/epiceric/shopchest/nms/SpawnEggMeta.java
index 8e3a649..59997e5 100644
--- a/src/main/java/de/epiceric/shopchest/nms/SpawnEggMeta.java
+++ b/src/main/java/de/epiceric/shopchest/nms/SpawnEggMeta.java
@@ -30,9 +30,9 @@ public class SpawnEggMeta {
             if (id instanceof String) return (String) id;
 
         } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
-            plugin.debug("Could not get NBTEntityID with reflection");
+            plugin.getLogger().severe("Failed to get NBTEntityID with reflection");
+            plugin.debug("Failed to get NBTEntityID with reflection");
             plugin.debug(e);
-            e.printStackTrace();
         }
 
         return null;
diff --git a/src/main/java/de/epiceric/shopchest/shop/Shop.java b/src/main/java/de/epiceric/shopchest/shop/Shop.java
index 0b33fb4..1cf2703 100644
--- a/src/main/java/de/epiceric/shopchest/shop/Shop.java
+++ b/src/main/java/de/epiceric/shopchest/shop/Shop.java
@@ -42,25 +42,15 @@ public class Shop {
 
         Block b = location.getBlock();
         if (b.getType() != Material.CHEST && b.getType() != Material.TRAPPED_CHEST) {
-            try {
-                plugin.getShopUtils().removeShop(this, plugin.getShopChestConfig().remove_shop_on_error);
-                Exception e = new Exception("No Chest found at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
-                plugin.debug(e);
-                throw e;
-            } catch (Exception ex) {
-                ex.printStackTrace();
-                return;
-            }
+            plugin.getShopUtils().removeShop(this, plugin.getShopChestConfig().remove_shop_on_error);
+            plugin.getLogger().severe("No Chest found at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
+            plugin.debug("No Chest found at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
+            return;
         } else if ((b.getRelative(BlockFace.UP).getType() != Material.AIR) && plugin.getShopChestConfig().show_shop_items) {
-            try {
-                plugin.getShopUtils().removeShop(this, plugin.getShopChestConfig().remove_shop_on_error);
-                Exception e = new Exception("No space above chest at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
-                plugin.debug(e);
-                throw e;
-            } catch (Exception ex) {
-                ex.printStackTrace();
-                return;
-            }
+            plugin.getShopUtils().removeShop(this, plugin.getShopChestConfig().remove_shop_on_error);
+            plugin.getLogger().severe("No space above chest at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
+            plugin.debug("No space above chest at specified Location: " + b.getX() + "; " + b.getY() + "; " + b.getZ());
+            return;
         }
 
         if (hologram == null || !hologram.exists()) createHologram();
diff --git a/src/main/java/de/epiceric/shopchest/shop/ShopItem.java b/src/main/java/de/epiceric/shopchest/shop/ShopItem.java
index 195976b..145b17e 100644
--- a/src/main/java/de/epiceric/shopchest/shop/ShopItem.java
+++ b/src/main/java/de/epiceric/shopchest/shop/ShopItem.java
@@ -80,9 +80,9 @@ public class ShopItem {
             creationPackets[1] = packetPlayOutEntityMetadataClass.getConstructor(int.class, dataWatcherClass, boolean.class).newInstance(entityId, dataWatcher, true);
             creationPackets[2] = packetPlayOutEntityVelocityClass.getConstructor(int.class, double.class, double.class, double.class).newInstance(entityId, 0D, 0D, 0D);
         } catch (NoSuchMethodException | NoSuchFieldException | InstantiationException | IllegalAccessException | InvocationTargetException e) {
+            plugin.getLogger().severe("Failed to create shop item");
             plugin.debug("Failed to create shop item with reflection");
             plugin.debug(e);
-            e.printStackTrace();
         }
     }
 
@@ -120,9 +120,9 @@ public class ShopItem {
                     Utils.sendPacket(plugin, packetPlayOutEntityDestroy, p);
                 }
             } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException e) {
+                plugin.getLogger().severe("Failed to destroy shop item");
                 plugin.debug("Failed to destroy shop item with reflection");
                 plugin.debug(e);
-                e.printStackTrace();
             }
         }
 
diff --git a/src/main/java/de/epiceric/shopchest/sql/Database.java b/src/main/java/de/epiceric/shopchest/sql/Database.java
index f661895..45db1b1 100644
--- a/src/main/java/de/epiceric/shopchest/sql/Database.java
+++ b/src/main/java/de/epiceric/shopchest/sql/Database.java
@@ -68,9 +68,9 @@ public abstract class Database {
             close(ps, rs);
 
         } catch (SQLException ex) {
+            plugin.getLogger().severe("Failed to connect to database");
             plugin.debug("Failed to connect to database");
             plugin.debug(ex);
-            ex.printStackTrace();
         }
     }
 
@@ -112,7 +112,8 @@ public abstract class Database {
             return highestID;
 
         } catch (SQLException ex) {
-            ex.printStackTrace();
+            plugin.debug("Failed to get highest used ID");
+            plugin.getLogger().severe("Failed to access database");
         } finally {
             close(ps, rs);
         }
@@ -133,7 +134,9 @@ public abstract class Database {
             plugin.debug("Removing shop from database (#" + shop.getID() + ")");
             ps.executeUpdate();
         } catch (SQLException ex) {
-            ex.printStackTrace();
+            plugin.getLogger().severe("Failed to access database");
+            plugin.debug("Failed to remove shop from database (#" + shop.getID() + ")");
+            plugin.debug(ex);
         } finally {
             close(ps, null);
         }
@@ -210,9 +213,8 @@ public abstract class Database {
                             plugin.debug("Getting sellprice: " + sellprice + " (#" + id + ")");
                             return sellprice;
                         case SHOPTYPE:
-                            ShopType shopType = ShopType.valueOf(rs.getString("shoptype"));
-                            plugin.debug("Getting shoptype: " + rs.getString("shoptype") + " (#" + id + ")");
                             String shoptype = rs.getString("shoptype");
+                            plugin.debug("Getting shoptype: " + shoptype + " (#" + id + ")");
 
                             if (shoptype.equals("INFINITE")) {
 
@@ -236,7 +238,9 @@ public abstract class Database {
             plugin.debug("Shop with ID not found, returning null. (#" + id + ")");
 
         } catch (SQLException ex) {
-            ex.printStackTrace();
+            plugin.getLogger().severe("Failed to access database");
+            plugin.debug("Failed to get shop info " + shopInfo.toString() + "(#" + id + ")");
+            plugin.debug(ex);
         } finally {
             close(ps, rs);
         }
@@ -269,7 +273,9 @@ public abstract class Database {
 
             ps.executeUpdate();
         } catch (SQLException ex) {
-            ex.printStackTrace();
+            plugin.getLogger().severe("Failed to access database");
+            plugin.debug("Failed to add shop to database (#" + shop.getID() + ")");
+            plugin.debug(ex);
         } finally {
             close(ps, null);
         }
@@ -287,7 +293,8 @@ public abstract class Database {
             if (rs != null)
                 rs.close();
         } catch (SQLException ex) {
-            ex.printStackTrace();
+            plugin.debug("Failed to close PreparedStatement/ResultSet");
+            plugin.debug(ex);
         }
     }
 
@@ -296,14 +303,14 @@ public abstract class Database {
      */
     public void disconnect() {
         try {
-            if (connection != null) {
+            if (connection != null && !connection.isClosed()) {
                 plugin.debug("Disconnecting from database...");
                 connection.close();
             }
         } catch (SQLException e) {
+            plugin.getLogger().severe("Failed to disconnect from database");
             plugin.debug("Failed to disconnect from database");
             plugin.debug(e);
-            e.printStackTrace();
         }
     }
 
diff --git a/src/main/java/de/epiceric/shopchest/sql/MySQL.java b/src/main/java/de/epiceric/shopchest/sql/MySQL.java
index 50b7127..6b71b95 100644
--- a/src/main/java/de/epiceric/shopchest/sql/MySQL.java
+++ b/src/main/java/de/epiceric/shopchest/sql/MySQL.java
@@ -27,7 +27,9 @@ public class MySQL extends Database {
 
             return connection;
         } catch (Exception ex) {
-            ex.printStackTrace();
+            plugin.getLogger().severe("Failed to get database connection");
+            plugin.debug("Failed to get database connection");
+            plugin.debug(ex);
         }
 
         return null;
diff --git a/src/main/java/de/epiceric/shopchest/sql/SQLite.java b/src/main/java/de/epiceric/shopchest/sql/SQLite.java
index 68bf022..52be243 100644
--- a/src/main/java/de/epiceric/shopchest/sql/SQLite.java
+++ b/src/main/java/de/epiceric/shopchest/sql/SQLite.java
@@ -6,6 +6,7 @@ import java.io.File;
 import java.io.IOException;
 import java.sql.Connection;
 import java.sql.DriverManager;
+import java.sql.SQLException;
 
 public class SQLite extends Database {
 
@@ -22,7 +23,9 @@ public class SQLite extends Database {
             try {
                 dbFile.createNewFile();
             } catch (IOException ex) {
-                ex.printStackTrace();
+                plugin.getLogger().severe("Failed to create database file");
+                plugin.debug("Failed to create database file");
+                plugin.debug(ex);
             }
         }
 
@@ -35,8 +38,10 @@ public class SQLite extends Database {
             connection = DriverManager.getConnection("jdbc:sqlite:" + dbFile);
 
             return connection;
-        } catch (Exception ex) {
-            ex.printStackTrace();
+        } catch (ClassNotFoundException | SQLException ex) {
+            plugin.getLogger().severe("Failed to get database connection");
+            plugin.debug("Failed to get database connection");
+            plugin.debug(ex);
         }
 
         return null;
diff --git a/src/main/java/de/epiceric/shopchest/utils/Utils.java b/src/main/java/de/epiceric/shopchest/utils/Utils.java
index 534a65a..b5abe67 100644
--- a/src/main/java/de/epiceric/shopchest/utils/Utils.java
+++ b/src/main/java/de/epiceric/shopchest/utils/Utils.java
@@ -3,6 +3,7 @@ package de.epiceric.shopchest.utils;
 import de.epiceric.shopchest.ShopChest;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
+import org.bukkit.configuration.InvalidConfigurationException;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
@@ -135,6 +136,9 @@ public class Utils {
      */
     public static boolean sendPacket(ShopChest plugin, Object packet, Player player) {
         try {
+            if (packet == null)
+                return false;
+
             Class<?> packetClass = Class.forName("net.minecraft.server." + getServerVersion() + ".Packet");
             Object nmsPlayer = player.getClass().getMethod("getHandle").invoke(player);
             Object playerConnection = nmsPlayer.getClass().getField("playerConnection").get(nmsPlayer);
@@ -143,9 +147,9 @@ public class Utils {
 
             return true;
         } catch (ClassNotFoundException | NoSuchMethodException | NoSuchFieldException | IllegalAccessException | InvocationTargetException e) {
+            plugin.getLogger().severe("Failed to send packet " + packet.getClass().getName());
             plugin.debug("Failed to send packet " + packet.getClass().getName());
             plugin.debug(e);
-            e.printStackTrace();
             return false;
         }
     }
@@ -195,7 +199,7 @@ public class Utils {
         YamlConfiguration config = new YamlConfiguration();
         try {
             config.loadFromString(new String(DatatypeConverter.parseBase64Binary(string), StandardCharsets.UTF_8));
-        } catch (Exception e) {
+        } catch (IllegalArgumentException | InvalidConfigurationException e) {
             e.printStackTrace();
             return null;
         }